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SIGMOD
2011
ACM
248views Database» more  SIGMOD 2011»
14 years 9 months ago
Llama: leveraging columnar storage for scalable join processing in the MapReduce framework
To achieve high reliability and scalability, most large-scale data warehouse systems have adopted the cluster-based architecture. In this paper, we propose the design of a new clu...
Yuting Lin, Divyakant Agrawal, Chun Chen, Beng Chi...
CHI
1996
ACM
15 years 11 months ago
Modelling Last-Minute Authoring: Does Technology Add Value or Encourage Tinkering?
To measure the productivity gained from computer-based authoring systems, account must be taken of changes in the way the work is organised. An analysis of economists' author...
William M. Newman, Margery Eldridge, Richard H. R....
IJBC
2010
77views more  IJBC 2010»
15 years 1 months ago
Spatio-Temporal Chaos in a Discrete Turing Model
In this paper, a discrete version of a reaction-diffusion equation, also known as coupled map lattice (CML), which corresponds to the Turing model of morphogenesis is studied. It i...
Hunseok Kang
AIED
2011
Springer
14 years 10 months ago
Towards Predicting Future Transfer of Learning
: We present an automated detector that can predict a student’s future performance on a transfer post-test, a post-test involving related but different skills than the skills stu...
Ryan Shaun Joazeiro de Baker, Sujith M. Gowda, Alb...
WWW
2011
ACM
15 years 1 months ago
Exploiting session-like behaviors in tag prediction
In social bookmarking systems, existing methods in tag prediction have shown that the performance of prediction can be significantly improved by modeling users’ preferences. Ho...
Dawei Yin, Liangjie Hong, Brian D. Davison